ANTHONY A RIEDER M.D.
NPI 1710989090
Otolaryngology in Wauwatosa, WI
About Anthony A Rieder M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANTHONY A RIEDER M.D. (NPI 1710989090) is an individual otolaryngology provider in Wauwatosa, Wisconsin, licensed in Wisconsin (ME43631) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, is affiliated with Riverside Regional Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Anthony A Rieder M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
7Medicare enrollment records show Anthony Rieder reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Wauwatosa, WI 53222
- Reassigned Medicare billing, Wisconsin enrollment
- 4 clinicians in this Medicare group
Milwaukee, WI 53213
- Reassigned Medicare billing, Wisconsin enrollment
- 60 clinicians in this Medicare group
Glendale, WI 53212
- Reassigned Medicare billing, Wisconsin enrollment
- 1,343 clinicians in this Medicare group
Iola, WI 54945
- Reassigned Medicare billing, Wisconsin enrollment
- 935 clinicians in this Medicare group
Stevens Point, WI 54481
- Reassigned Medicare billing, Wisconsin enrollment
- 619 clinicians in this Medicare group
Williamsburg, VA 23185
- Reassigned Medicare billing, Virginia enrollment
- 1,097 clinicians in this Medicare group
Flagstaff, AZ 86004
- Reassigned Medicare billing, Arizona enrollment
- 552 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Riverside Regional Medical Center
Acute Care Hospitals · Newport News, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53222 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 13
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MILWAUKEE, WI 53222
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Anthony Rieder's NPI number?
The NPI number for Anthony Rieder is 1710989090. It was assigned to this individual provider in the NPPES registry on June 1, 2005.
Where is Anthony Rieder located?
Anthony Rieder practices at 2727 N Mayfair Rd Ste I, Wauwatosa, WI 53222. The listed phone number is (414) 727-0910.
What is Anthony Rieder's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is Anthony Rieder enrolled in Medicare?
Yes. Anthony Rieder is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Anthony Rieder's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Anthony Rieder reassigns Medicare benefits to 7 organizations: Alliance Ent And Hearing Center, Sc (Wauwatosa, WI), Wisconsin Health Fund (Milwaukee, WI), Ascension Medical Group-Southeast Wisconsin Inc (Glendale, WI), Aspirus Rhinelander & Tomahawk Hospitals & Clinics, Inc. (Iola, WI), Aspirus Stevens Point Hospital & Clinics, Inc. (Stevens Point, WI) and 2 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Anthony Rieder's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Anthony Rieder accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, Blue Cross Blue Shield of Arizona, Cigna HealthCare of Arizona, Inc and HealthPartners and 3 other insurers list Anthony Rieder as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Anthony Rieder affiliated with any hospitals?
According to CMS data, Anthony Rieder is affiliated with Riverside Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Anthony Rieder was last updated on January 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.